Chain type equipment transmission broken shaft detection method

Abstract

The invention belongs to the technical field of photovoltaic cleaning equipment, and particularly relates to a chain type equipment transmission broken shaft detection method which comprises the following steps: step 1, recording initial data, controlling the running speed of a whole set of transmission system by controlling the rotating speed of a servo motor, and recording and setting the running speed as a torque value during normal running; 2, equipment operation is monitored, the rotating torque is monitored and controlled through a servo motor, and once an emergency occurs, the torque of the servo motor can change; and step 3, shutdown alarm: the servo motor reads the torque value of the servo during normal operation, and when the torque changes and the torque value of the main transmission shaft is different from the set value, the equipment gives an alarm and stops operation, the method detects and alarms the breakage of the main shaft on the premise of not adding other structural devices, the method is simple, the detection effect is good, and the method is suitable for popularization and application. And the manufacturing cost of equipment is not increased.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic cleaning equipment technology, specifically a method for detecting broken shafts in chain-type equipment transmissions. Background Technology

[0002] In the solar cell process of the photovoltaic industry, a chain cleaning device for single-sided cleaning of silicon wafers is involved. The device adopts a horizontal conveying structure to transport silicon wafers. The reason for using this method to transport silicon wafers is that this method can perform etching on one side of the silicon wafer, thereby protecting the other side that does not need to be etched.

[0003] Because silicon wafers are transported in batches and multiple channels, the transmission structure system of this equipment must be reliable and stable. With the continuous upgrading of photovoltaic cell technology, the precision requirements for photovoltaic equipment are also gradually increasing, and the stability and reliability of the equipment need to be continuously enhanced.

[0004] Because the drive shaft has many driven shafts, the drive shaft experiences a large torque. During production, problems such as main drive shaft breakage and slippage, as well as breakage of the connecting sleeves between the main shafts, often occur. These issues can cause the rollers inside the equipment to stop rotating. However, since there is no signal to remind the silicon wafer feeding section, silicon wafers continue to be fed into the equipment, resulting in a large number of silicon wafers remaining inside the equipment and causing significant losses. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: a method for detecting broken shafts in chain-driven equipment, comprising the following steps: Step 1: Record initial data. By controlling the speed of the servo motor, the operating speed of the entire transmission system is controlled, thereby recording and setting the torque value for normal operation. Step 2: Equipment operation monitoring. Servo motors are used to monitor and control the rotational torque. In case of an emergency, the torque of the servo motor will change. Step 3: Stop alarm. The servo motor reads the torque value of the servo motor during normal operation. When the torque changes and the torque value of the main drive shaft is different from the set value, the equipment will issue an alarm and stop running.

[0006] The existing chain cleaning equipment uses a servo motor to drive the entire drive shaft, and then gears drive all the driven shafts to rotate, thus moving the silicon wafers laid on the driven shafts forward (e.g., ...). Figure 2 (The black block in the middle represents a silicon wafer). Because the entire drive shaft is relatively long, it is designed and manufactured in segments, and the connection of the main shaft is made by using spacer sleeves. During the production process, problems such as breakage and slippage of the main drive shaft, as well as breakage of the connecting sleeve between the main shafts, often occur. These problems can cause the rollers inside the equipment to stop rotating, thereby changing the torque value of the servo motor, triggering an alarm and causing the machine to stop.

[0007] Furthermore, in step one, normal operation refers to the situation where, after the servo motor is started, the entire drive shaft drives all the driven shafts to operate, and the torque value of the main drive shaft at this time is recorded.

[0008] Furthermore, the emergencies mentioned in step two refer to problems such as breakage or slippage of the main drive shaft, as well as breakage of the connecting sleeve between the main shafts. These problems will cause the rollers inside the equipment to stop rotating, resulting in changes in the torque value.

[0009] Furthermore, when the torque changes and the transmission stops in step three, the feeding section also stops feeding.

[0010] Furthermore, when the driven wheel skips a tooth, the torque value of the servo motor read by the servo motor also changes, which will trigger an alarm in the device.

[0011] Furthermore, when one or more driven shafts in the drive shaft experience tooth skipping, it will cause a change in the torque value, thereby triggering an alarm and shutdown.

[0012] Furthermore, when the driven shaft experiences tooth loss or breakage, the torque value will change, triggering an alarm and shutdown.

[0013] The beneficial effects of this invention are as follows: 1. The existing transmission structure of the chain cleaning equipment is that the entire drive shaft is driven by a servo motor, and then all the driven shafts are driven by gear meshing, thereby moving the silicon wafers laid on the driven shafts forward. Since the entire drive shaft is relatively long, it is necessary to design and manufacture the entire drive shaft in sections. The connection of the main shaft is connected by a spacer. The present invention detects and alarms the main shaft fracture without adding other structural devices. The method is simple, the detection effect is good, and it will not increase the manufacturing cost of the equipment.

[0014] 2. This invention, by setting the set torque value of the servo motor, can monitor and shut down the machine in cases where the main drive shaft does not break or slip but the driven wheel skips teeth, or one or more driven shafts in the drive shaft skip teeth, lose teeth, or break. It can handle various emergencies. When the transmission stops, the feeding section also stops feeding, protecting the silicon wafers away from the faulty section and preventing them from accumulating inside the equipment due to continuous feeding, which could cause significant losses. Attached Figure Description

[0015] Figure 1 This is a flowchart of the present invention; Figure 2 This is a layout diagram of the transmission system of the present invention; Figure 3 This is a schematic diagram of the servo motor installation in the transmission system of this invention. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0017] Example 1, please refer to Figures 1-3 The present invention provides a technical solution: a method for detecting broken shafts in chain-type equipment transmissions, which is described below.

[0018] Includes the following steps: Step 1: Record initial data. By controlling the speed of the servo motor, the operating speed of the entire transmission system is controlled, thereby recording and setting the torque value for normal operation. Step 2: Equipment operation monitoring. Servo motors are used to monitor and control the rotational torque. In case of an emergency, the torque of the servo motor will change. Step 3: Stop alarm. The servo motor reads the torque value of the servo motor during normal operation. When the torque changes and the torque value of the main drive shaft is different from the set value, the equipment will issue an alarm and stop running. By setting the set torque value of the servo motor, the system can monitor and shut down the machine in cases where the main drive shaft does not break or slip but the driven wheel skips teeth, or one or more driven shafts in the drive shaft skip teeth, lose teeth, or break. It can handle various emergencies. When the drive stops, the feeding section also stops feeding, which can protect the silicon wafers away from the fault section and prevent the silicon wafers from accumulating inside the equipment due to continuous feeding, thus avoiding significant losses. The existing chain cleaning equipment has a transmission structure in which a servo motor drives the entire drive shaft to rotate, and then the meshing of gears drives all the driven shafts to rotate, thereby moving the silicon wafers laid on the driven shafts forward. Because the entire drive shaft is relatively long, it is necessary to design and manufacture the entire drive shaft in segments. The connection of the main shaft is made by using a spacer sleeve. This invention can detect and alarm for main shaft breakage without adding other structural devices. The method is simple, the detection effect is good, and it will not increase the manufacturing cost of the equipment.

[0019] In step one, normal operation refers to the situation where, after the servo motor is started, the entire drive shaft drives all the driven shafts to operate, and the torque value of the main drive shaft at this time is recorded.

[0020] The emergencies mentioned in step two refer to problems such as breakage or slippage of the main drive shaft, as well as breakage of the connecting sleeve between the main shafts. These problems will cause the rollers inside the equipment to stop rotating, resulting in changes in the torque value.

[0021] When the torque changes in step three, causing the transmission to stop, the feeding section also stops feeding.

[0022] When the driven wheel skips a tooth, the torque value of the servo motor read by the servo motor also changes, which will trigger an alarm in the device.

[0023] When one or more driven shafts in the drive shaft experience tooth skipping, it will cause a change in the torque value, thereby triggering an alarm and shutdown.

[0024] When the driven shaft experiences tooth loss or shaft breakage, the torque value will change, triggering an alarm and shutdown.

[0025] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for detecting broken shafts in chain-driven equipment, characterized in that, Includes the following steps: Step 1: Record initial data. By controlling the speed of the servo motor, the operating speed of the entire transmission system is controlled, thereby recording and setting the torque value for normal operation. Step 2: Equipment operation monitoring. Servo motors are used to monitor and control the rotational torque. In case of an emergency, the torque of the servo motor will change. Step 3: Stop alarm. The servo motor reads the torque value of the servo motor during normal operation. When the torque changes and the torque value of the main drive shaft is different from the set value, the equipment will issue an alarm and stop running.

2. The method for detecting broken shafts in chain-driven equipment according to claim 1, characterized in that: In step one, normal operation refers to the situation where, after the servo motor is started, the entire drive shaft drives all the driven shafts to operate, and the torque value of the main drive shaft at this time is recorded.

3. The method for detecting broken shafts in chain-driven equipment according to claim 1, characterized in that: The unexpected situations mentioned in step two refer to problems such as breakage or slippage of the main drive shaft, as well as breakage of the connecting sleeve between the main shafts. These problems will cause the rollers inside the equipment to stop rotating, resulting in changes in the torque value.

4. The method for detecting broken shafts in chain-driven equipment according to claim 1, characterized in that: When the torque changes and the transmission stops in step three, the feeding section also stops feeding.

5. The method for detecting broken shafts in chain-driven equipment according to claim 1, characterized in that: When the driven wheel skips a tooth, the torque value of the servo motor read by the servo motor also changes, which will trigger an alarm in the device.

6. The method for detecting broken shafts in chain-driven equipment according to claim 1, characterized in that: When one or more driven shafts in the drive shaft experience tooth skipping, it will cause a change in the torque value, thereby triggering an alarm and shutdown.

7. The method for detecting broken shafts in chain-driven equipment according to claim 6, characterized in that: When the driven shaft experiences tooth loss or shaft breakage, the torque value will change, triggering an alarm and shutdown.

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